In the film, which hits theaters on Friday, November 8, Kate says that she "was really sick and almost died."

Based on the two trailers that have been released, fans have guessed that the movie's big plot twist is that Tom literally gave his heart to Kate, who they think underwent a heart transplant.

In response to the theories, director Paul Feig told RadioTimes.com: "Anything anybody thinks they know about this movie is not correct. It makes me laugh because it's this romantic comedy and then everyone is treating it like it's 'The Matrix.' It's just a lovely Christmas movie!"

The new trailer for "Last Christmas" further fuels a popular fan theory, but the director says we're all seeing things.

Universal Pictures Australia released a new international trailer for the holiday film, which stars "Game of Thrones" actress Emilia Clarke as a woman named Kate who works at a Christmas store in London and also sings. She falls in love with a man named Tom, played by "Crazy Rich Asians" star Henry Golding. After the first trailer was released in August, people theorized that Tom is a ghost or an angel, and perhaps he donated his heart to Kate.

"Anything anybody thinks they know about this movie is not correct," director Paul Feig told RadioTimes.com. "It makes me laugh because it's this romantic comedy and then everyone is treating it like it's 'The Matrix.' It's just a lovely Christmas movie!"

The latest trailer begins with Clarke's character singing George Michael's hit song "Last Christmas," which served as inspiration for the Emma Thompson-written film. In the movie, Kate's "grand plan" beyond working in a holiday shop is "to become a famous singer."

"Last Christmas, I was really sick and almost died," she says to Tom, as scenes of Kate being rushed to the hospital are shown. "I don't tell people because they get weird, but I don't think you'll get weird."

Kate later tells Tom: "I'm a mess. When I was ill, it felt like I lost something special. I could sing before, I had all these dreams."

"I'm scared all the time," she says as Tom comforts her.

Based on the two trailers that have been released so far, fans have become convinced the ghost/guardian angel theory in which Tom's supposed heart donation helps Kate turn things around for the better. Moreover, people think that the film takes Michael's song lyrics ("Last Christmas I gave you my heart") literally.

Because Tom is only seen interacting with Kate and no one else in the trailers, fans think that's further proof of the plot twist about his identity. Lines like, "I've been trying to find you, but you keep disappearing," have also contributed to the theory.

Fans will get their answers when "Last Christmas" hits theaters on Friday, November 8. Watch the new trailer below.

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